Hatchway for elevators



(No, Model.)

W. STEVENS.

HATGHWAY FOR ELEVATORS.

Invent/ an ETERS. PhaloLMwgraph-r. Wnhn mc. D. l;

UNITED STATES WILLIAM STEVENS, or PHILADELPHIA, PENNSYLVANIA;

' 'HATCHWAY FOR ELEVATORS.

SPECIFICATION formingpart of Letters Patent No. 287,590, dated October 30, 18 83.

Application filed March 23,1883. (No model.) v

To all whom it may concern.-

Be it known that 1, WILLIAM STEVENS, of

the city of Philadelphia, county of Philadelphia,' and State of Pennsylvania, have in- 5 vented an Improvement in Hatchways for Elevators, of which the following is a specification.

My invention has reference to elevators,

but more particularly to the hatch-doors there to on; and it consists in hinging the door to the floor. at one side, and providing said door with a hinged section adapted to automatically fold up in'the act of raising the door,

- so as to clear the guide post, and in details .15 of construction, as fully set out in the fol-' lowing specification, and shown in the accompanying drawings, which form part thereof.

Heretofore elevators having the guide-posts arranged vertically through two diagonal cor- 2o ners have had their hatch-doors divided into 25 used.

The object of my invention is to so con struct the hatchdoors of a diagonal guidepost elevator that three approaches are available.

In the drawings, Figure 1 is a perspective view of my improved elevator hatch-door in the act of being opened. Fig. 2 is a plan view of same with the door closed, and Fig. 3 is a plan view of same with the door opened.

A is the hatchway.

B are the diagonally-arranged guide-posts for theelevator cage or'platform.

O is the hatch -door, and almost entirely covers the hatchway, and is hinged to the 40 floor at D on one side.

E is a small flap hinged to one side of the door 0 at F, and when turned up at or near right angles with the door 0 it clears the guide -post as the said door is raised. To

cause said flap to turn up quickly I provide the following mechanism: Ashaft, G, is carried in bearings H on door 0, and one end thereof is provided with'an arm, g, which.

works under a roller, 1, secured to the flap E, and on the other end with an arm, 9,

the other end of which is pivoted by a uni-. versal joint, L, to the floor, as shown. Now, when the door is closed, the flap is down, and the'arm g is almost vertical to the door; but upon raising,the shaft G is quickly rotated by the arm 9 and resistance offered by the stay-bar K, and the flap is raised at right angles to the door 0 and in time to clear the post B as ,the door is fully opened; and in closing,'the door is almost closed before the flap turns down. This quick movement of the flap is necessary to ,enable itto readily clear the post in opening and closing.

I do not limit myself to the specific construction of mechanism shown, as it may be modified in various ways without in any wise departing from my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is I 1; A hatchway for elevators, provided with a door hinged on one side of said hatchway only, the said door having a hinged flap, and combined with means to automatically raise said flap to a substantially perpendicular position upon the door in the act of raising the same, substantially as and for the purpose, specified.

2. A hatchway for elevators, provided with a door hinged on one side thereof, having a hinged flap, combined with means to raise said flap rapidly, and then. hold it at or near right angles with refereneeto said door upon opening the same, and reversely upon closing said door, to cause saidfiap to avoid collision with the guide-posts, substantially as and for thepurpose specified.

3. The combination of hatchway A, guideposts B, door 0, hinged at D, and flap E, hinged to the door at F, substantially as and for the purpose specified. 7

4. The combination of hatchway A, guideposts B, door 0', hinged at D, and flap E, hinged to the door at F, shaft G, having arms 9 g, and stay-rod K, substantially as and for the purpose specified.

In testimony of which inven ion I-hereunto set my hand.

R. M. HUNTER, W vr. MOWADE. 

